Hi,<br>I am a new user of GROMACS and I wish to Generate a Polyethylene Surface for my work related to hydrophobic Surface Properties. I went through an earlier available <a href="http://lists.gromacs.org/pipermail/gmx-users/2009-March/040125.html">correspondence</a> and tried to use the info available. After execution of pdb2gmx command and opting for OPLS force field, I got an error as:<br>
<i><br>Fatal error:<br>Atom C1 in residue EtOH 1 not found in rtp entry with 9 atoms<br> while sorting atoms<br></i><br>I am unable to understand the relevance of this error as in Polyethylene, Alcoholic group is not present whatsoever. Please help me in removing this particular error.<br>
<br clear="all"><br>-- <br>Yash Gandhi,<br>4th Year, BE (Hons) Chemical,<br>Birla Institute of Technology & Science, Pilani, India<br><br>